6311642 has 4 divisors (see below), whose sum is σ = 9467466. Its totient is φ = 3155820.

The previous prime is 6311639. The next prime is 6311659. The reversal of 6311642 is 2461136.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5248681 + 1062961 = 2291^2 + 1031^2 .

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1577909 + ... + 1577912.

Almost surely, 2^6311642 is an apocalyptic number.

6311642 is a deficient number, since it is larger than the sum of its proper divisors (3155824).

6311642 is a wasteful number, since it uses less digits than its factorization.

6311642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3155823.

The product of its digits is 864, while the sum is 23.

The square root of 6311642 is about 2512.2981510959. The cubic root of 6311642 is about 184.8051710790.

Adding to 6311642 its reverse (2461136), we get a palindrome (8772778).

The spelling of 6311642 in words is "six million, three hundred eleven thousand, six hundred forty-two".